EP 4012742 A4 20230816 - X-RAY TUBE FOR ANALYSIS
Title (en)
X-RAY TUBE FOR ANALYSIS
Title (de)
RÖNTGENRÖHRE ZUR ANALYSE
Title (fr)
TUBE À RAYONS X POUR ANALYSE
Publication
Application
Priority
- JP 2019143781 A 20190805
- JP 2019050953 W 20191225
Abstract (en)
[origin: EP4012742A1] According to one embodiment, an analytical X-ray tube includes a vacuum enclosure with an output window to transmit X-rays, a disc-shaped anode target provided in the vacuum enclosure and opposing the output window, an anode support that supports the anode target by attaching a tip end thereto, a converging electrode provided on an outer circumference of the anode target and a cathode filament provided on an outer circumference of the converging electrode and emitting electrons to be irradiated on to the anode target. The anode support includes a distal end portion an outer diameter of which is smaller than an outer diameter of the anode target, and a rear side portion on a rear side of the distal end portion, an outer diameter of which is greater than the outer diameter of the anode target, and an outer surface of the rear portion is coated with a coating layer of a same material as that of the anode target.
IPC 8 full level
H01J 35/08 (2006.01); H01J 35/14 (2006.01); H01J 35/18 (2006.01)
CPC (source: EP US)
H01J 35/112 (2019.05 - EP US); H01J 35/147 (2019.05 - US)
Citation (search report)
- [I] US 6393099 B1 20020521 - MILLER ROBERT STEVEN [US]
- [A] DE 2301007 A1 19730809 - FUNKWERK ERFURT VEB K
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 4012742 A1 20220615; EP 4012742 A4 20230816; CN 114175205 A 20220311; JP 2021026882 A 20210222; US 2022157552 A1 20220519; WO 2021024510 A1 20210211
DOCDB simple family (application)
EP 19940229 A 20191225; CN 201980098921 A 20191225; JP 2019050953 W 20191225; JP 2019143781 A 20190805; US 202217586983 A 20220128